Probing the high-field nematic state of CeRhIn5 via dilatometry
| Date/Time: | Thursday, 04 Oct 2018 from 4:10 pm to 5:00 pm |
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| Location: | Physics 3 |
| Contact: | |
| Phone: | 515-294-7377 |
| Channel: | College of Liberal Arts and Sciences |
| Actions: | Download iCal/vCal | Email Reminder |
CeRhIn5 , a heavy-fermion antiferromagnet, exhibits remarkable behavior when subjected to
either high magnetic fields or high applied pressures. A superconducting dome emerges around
a putative unconventional quantum critical point at 2.3 GPa, and an XY nematic phase has been
recently discovered at B* > 30 T. In this talk, I will discuss magnetostriction experiments that
probe this high-field phase. Capacitance dilatometers and optical fibers containing fiber Bragg
grating (FBG) sensors are used to measure the length change in millimiter-sized single crystals
subjected to magnetic fields to 45 T. Our results support a scenario in which anisotropic
hybridization sets the stage for electronic nematicity in CeRhIn5 .